Home / 28,287.95-42,436.51-9,569.12

Finding the Fourth Proportional to 28,287.95, 42,436.51 and 9,569.12

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Solution

The fourth proportional to 28,287.95, 42,436.51 and 9,569.12 is: 14,355.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,287.95 : 42,436.51 = 9,569.12 : x
  2. Step 2: Convert to fraction form
    28,287.95/42,436.51 = 9,569.12/x
  3. Step 3: Cross multiply
    28,287.95x = 42,436.51 × 9,569.12
  4. Step 4: Simplify right side
    28,287.95x = 406,079,979.60
  5. Step 5: Solve for x
    x = 406,079,979.60/28,287.95
  6. Step 6: Final answer
    x = 14,355.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.